Retaining clip



FIG. 1 is a top perspective view of a retaining clip showing a first embodiment of my new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front elevation view thereof; the rear elevation view being a mirror image thereof;

FIG. 4 is a bottom perspective view of a retaining clip showing a second embodiment of my new design;

FIG. 5 is a top perspective view thereof; and,

FIG. 6 is a front elevation view thereof; the rear elevation view being a mirror image thereof. 

The ornamental design for a retaining clip, as shown and described. 